linux-kernel - [pinchartl-media:streams/v6.0/v11 27/49] drivers/media/v4l2-core/v4l2-subdev.c:156:8: error: call to undeclared function 'v4l2_subdev_state_get_stream_format'; ISO C99 and later do not support implicit function declarations

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Message-ID: <202209080505.7TfHX43B-lkp@intel.com>
Date:   Thu, 8 Sep 2022 05:15:01 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: [pinchartl-media:streams/v6.0/v11 27/49]
 drivers/media/v4l2-core/v4l2-subdev.c:156:8: error: call to undeclared
 function 'v4l2_subdev_state_get_stream_format'; ISO C99 and later do not
 support implicit function declarations

tree:   git://linuxtv.org/pinchartl/media.git streams/v6.0/v11
head:   c8cf58f00bee6d4f43462b3e3f83ef516c594d61
commit: 46db369d5850a9ac814a5ac236a4d39e390ca217 [27/49] media: subdev: add stream based configuration
config: arm-randconfig-r002-20220907 (https://download.01.org/0day-ci/archive/20220908/202209080505.7TfHX43B-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project c55b41d5199d2394dd6cdb8f52180d8b81d809d4)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        git remote add pinchartl-media git://linuxtv.org/pinchartl/media.git
        git fetch --no-tags pinchartl-media streams/v6.0/v11
        git checkout 46db369d5850a9ac814a5ac236a4d39e390ca217
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/media/v4l2-core/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/media/v4l2-core/v4l2-subdev.c:156:8: error: call to undeclared function 'v4l2_subdev_state_get_stream_format'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
                   if (!v4l2_subdev_state_get_stream_format(state, pad, stream))
                        ^
   1 error generated.


vim +/v4l2_subdev_state_get_stream_format +156 drivers/media/v4l2-core/v4l2-subdev.c

   150	
   151	static int check_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state,
   152			       u32 which, u32 pad, u32 stream)
   153	{
   154	#if defined(CONFIG_MEDIA_CONTROLLER)
   155		if (sd->flags & V4L2_SUBDEV_FL_MULTIPLEXED) {
 > 156			if (!v4l2_subdev_state_get_stream_format(state, pad, stream))
   157				return -EINVAL;
   158			return 0;
   159		}
   160	#endif
   161	
   162		if (which == V4L2_SUBDEV_FORMAT_TRY && (!state || !state->pads))
   163			return -EINVAL;
   164	
   165		return 0;
   166	}
   167	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp